diff --git a/module2/exo1/toy_notebook_fr.ipynb b/module2/exo1/toy_notebook_fr.ipynb
index ab153cb02dc0a5771799daa9c71b74aac73de2c6..83d5b2e551d870bf7685b73d7f31f83d41da8111 100644
--- a/module2/exo1/toy_notebook_fr.ipynb
+++ b/module2/exo1/toy_notebook_fr.ipynb
@@ -4,15 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# A propos de "
+    "# A propos de $\\pi$"
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "source": [
+    "## En demandant à la lib maths\n",
+    "Mon ordinateur m'indique que $\\pi$ vaut *approximativement*"
+   ]
   }
  ],
  "metadata": {